Boiled egg

A dozen hard-boiled eggs The longest-lasting protein on this list. Hard-cooked eggs left in their shells and refrigerated within two hours of cooking keep for a week, so a Sunday dozen outlasts everything else in the fridge. Peel them only as you need them, because peeled or cracked eggs should be eaten within one to two days. They turn up everywhere: halved over a grain bowl, sliced onto toast with chimichurri, chopped into egg salad, dropped into ramen, or eaten with salt as the snack that stops a four o'clock raid on the vending machine. Cooking a few to a jammy middle and the rest firm gives the week some variety.